worry vs reassure

worry is a noun but reassure is not a noun.

Word	Noun	Adjective	Verb	Adverb
worry	Yes	No	Yes	No
reassure	No	No	Yes	No

worry (noun)	reassure (noun)
something or someone that causes anxiety; a source of unhappiness
a strong feeling of anxiety

worry (verb)	reassure (verb)
lacerate by biting	give reassurance to; give or restore confidence in; cause to feel sure or certain
touch or rub constantly
be worried, concerned, anxious, troubled, or uneasy
disturb the peace of mind of; afflict with mental agitation or distress
be concerned with
be on the mind of